i would like to know if an afe cai system cx stage 2 kit with a pro s dry filter or an afe stage 2 si kit with a pro s dry filter will give me any hp at all? and if so which one would be the best to buy? i have a 2011 v6/auto 4door. i know on my 2009 i had a k&n cai on it and it seemd to pull better up steeper hills and take off quiker.

I know you are asking URD but I will chime in anyway. Intakes usually only show gains at high RPM. That K&N you had on your truck was proven to take power away. The AFE Stage 2 SI is pretty much a old style TRD. Actually they are the same except for the hole at the bottom. Gains were 10hp or less I think but any gain is at high RPM. So you have to be flooring it to see the gains. The URD TCAI is by the far the best intake for gains but again probably high RPM.